1/22/05
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| Rotary Table | Home | |||||||||||||||||||||||||||||||||||||||||
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| A buddy of mine tore apart an old pump and gave me a worm wheel and gear that looked to be in good shape. I had wanted to make a rotary table for some time, but always got stopped by how I was going to make the gears. So I knew as soon as he handed them to me what I would be doing with them. | ||||||||||||||||||||||||||||||||||||||||||
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| The hand wheel on the right and bearing block on the left are the first two parts I started with. I cast them from scrap aluminum in my forge. After the casting process, I machined them to size on the mini lathe and mini mill. Check out the "before and after" pictures. | ||||||||||||||||||||||||||||||||||||||||||
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| Here is the base of the rotary table made from pink construction insulating foam and covered with a coat of Plaster of Paris. The foam was cut using several methods. I used a home made hot wire cutter, which worked good on the thick sections, but needs a guide of some type to make straight cuts. Heavy paper from a serial box makes a nice guide, so I cut it to the required shape and held it into place with tape and pins. I also used a Dremel table saw on some sections and found that it cuts very well and leaves a smooth finish. I also used several knifes to shape the foam. All the pieces are held in place with hot melt glue which is vaporize along with the foam during the pour. The last step was to apply a coat of plaster to some of the more critical areas that I wanted a good surface finish on. Click here to see the casting being machined in the mini mill. And here to see the casting being bored with my home made boring tool 1/9/05 | ||||||||||||||||||||||||||||||||||||||||||
| Here are the two table lock knobs fabricated from a piece of steel rod. The parts were first turned on my lathe and the slots and holes added with the mill. I used my homemade ball cutter lathe attachment for the round spherical ends. 1/22/05 |
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| The index pin knob was turned down from an aluminum casting and knurled. 2-15-05 | ||||||||||||||||||||||||||||||||||||||||||
| Index pin for the dividing head made from 5/8 dia HRS and turned down on the lathe. 2-12-05 | ||||||||||||||||||||||||||||||||||||||||||
| This is the crank arm for the dividing head. I cast the part from aluminum after making a blank from pink foam. 2-5-05 | ||||||||||||||||||||||||||||||||||||||||||
| Rotary Table Page 2 | ||||||||||||||||||||||||||||||||||||||||||
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